The variation in Ske-scores due to variation in the weightage given to policy gradient loss in tabulated in Table REF . A very important observation is that as the weightage to the policy gradient loss is increased, the Ske-score increases. Also, a Ske-score which is sufficiently close to that of the dataset implies an alleviation of the Scribble Effect. Therefore, we conclude that the policy gradient formulation is ideal for pen-states as it reduces the Scribble Effect and helps in generating visually appealing sketches. The Scribble Effect is one of the short-comings of Sketch-rnn [1]}.
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